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<li class="navelem"><a class="el" href="../../d2/d75/namespacecv.html">cv</a></li><li class="navelem"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html">FarnebackOpticalFlow</a></li>  </ul>
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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">cv::FarnebackOpticalFlow Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span><div class="ingroups"><a class="el" href="../../d7/de9/group__video.html">Video Analysis</a> » <a class="el" href="../../dc/d6b/group__video__track.html">Object Tracking</a></div></div>  </div>
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<p>Class computing a dense optical flow using the Gunnar Farneback's algorithm.  
 <a href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#details">More...</a></p>
<p><code>#include &lt;opencv2/video/tracking.hpp&gt;</code></p>
<div class="dynheader">
Inheritance diagram for cv::FarnebackOpticalFlow:</div>
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  <img alt="" src="../../de/d9e/classcv_1_1FarnebackOpticalFlow.png" usemap="#cv::FarnebackOpticalFlow_map"/>
  <map id="cv::FarnebackOpticalFlow_map" name="cv::FarnebackOpticalFlow_map">
<area alt="cv::DenseOpticalFlow" coords="0,56,160,80" href="../../df/dde/classcv_1_1DenseOpticalFlow.html" shape="rect"/>
<area alt="cv::Algorithm" coords="0,0,160,24" href="../../d3/d46/classcv_1_1Algorithm.html" shape="rect" title="This is a base class for all more or less complex algorithms in OpenCV. "/>
</map>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ab9dbbcf7b690417657cc4bbccbaa931b"><td align="right" class="memItemLeft" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#ab9dbbcf7b690417657cc4bbccbaa931b">getFastPyramids</a> () const =0</td></tr>
<tr class="separator:ab9dbbcf7b690417657cc4bbccbaa931b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3f1a6af08b0322eb9af98c5d0b18f2ba"><td align="right" class="memItemLeft" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a3f1a6af08b0322eb9af98c5d0b18f2ba">getFlags</a> () const =0</td></tr>
<tr class="separator:a3f1a6af08b0322eb9af98c5d0b18f2ba"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a810c5a1cc6564e14f6e4a6183cdf58c5"><td align="right" class="memItemLeft" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a810c5a1cc6564e14f6e4a6183cdf58c5">getNumIters</a> () const =0</td></tr>
<tr class="separator:a810c5a1cc6564e14f6e4a6183cdf58c5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a23aae74291ed9e896aa90499e2bb9eeb"><td align="right" class="memItemLeft" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a23aae74291ed9e896aa90499e2bb9eeb">getNumLevels</a> () const =0</td></tr>
<tr class="separator:a23aae74291ed9e896aa90499e2bb9eeb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5554c4f40b80277feb8826a3eb484f0b"><td align="right" class="memItemLeft" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a5554c4f40b80277feb8826a3eb484f0b">getPolyN</a> () const =0</td></tr>
<tr class="separator:a5554c4f40b80277feb8826a3eb484f0b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a32500dc4fea948268e5937a2da915d48"><td align="right" class="memItemLeft" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a32500dc4fea948268e5937a2da915d48">getPolySigma</a> () const =0</td></tr>
<tr class="separator:a32500dc4fea948268e5937a2da915d48"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7c9a20fa22122040ea97e757bf2704bf"><td align="right" class="memItemLeft" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a7c9a20fa22122040ea97e757bf2704bf">getPyrScale</a> () const =0</td></tr>
<tr class="separator:a7c9a20fa22122040ea97e757bf2704bf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad35109ce6da384ff7e2568a3bcaa7331"><td align="right" class="memItemLeft" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#ad35109ce6da384ff7e2568a3bcaa7331">getWinSize</a> () const =0</td></tr>
<tr class="separator:ad35109ce6da384ff7e2568a3bcaa7331"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad1e4f8b3a53098f5994a2048bd84ef92"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#ad1e4f8b3a53098f5994a2048bd84ef92">setFastPyramids</a> (bool fastPyramids)=0</td></tr>
<tr class="separator:ad1e4f8b3a53098f5994a2048bd84ef92"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1297d4b32eeae6c61f90ca1ab47b66ea"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a1297d4b32eeae6c61f90ca1ab47b66ea">setFlags</a> (int flags)=0</td></tr>
<tr class="separator:a1297d4b32eeae6c61f90ca1ab47b66ea"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa3a3accde9da8c1d2ee7f3dc2697c059"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#aa3a3accde9da8c1d2ee7f3dc2697c059">setNumIters</a> (int numIters)=0</td></tr>
<tr class="separator:aa3a3accde9da8c1d2ee7f3dc2697c059"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a19152daa38e2f224da52ad15362360fa"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a19152daa38e2f224da52ad15362360fa">setNumLevels</a> (int numLevels)=0</td></tr>
<tr class="separator:a19152daa38e2f224da52ad15362360fa"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a408c4f0d5b694dc815282b651a69d400"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a408c4f0d5b694dc815282b651a69d400">setPolyN</a> (int polyN)=0</td></tr>
<tr class="separator:a408c4f0d5b694dc815282b651a69d400"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6aa97f512e1d8712480af3e8d89004a3"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a6aa97f512e1d8712480af3e8d89004a3">setPolySigma</a> (double polySigma)=0</td></tr>
<tr class="separator:a6aa97f512e1d8712480af3e8d89004a3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3e9149ec5a74942b81959c198a13f1b3"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a3e9149ec5a74942b81959c198a13f1b3">setPyrScale</a> (double pyrScale)=0</td></tr>
<tr class="separator:a3e9149ec5a74942b81959c198a13f1b3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aac38b4be9d384303cd196562df65a42c"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#aac38b4be9d384303cd196562df65a42c">setWinSize</a> (int winSize)=0</td></tr>
<tr class="separator:aac38b4be9d384303cd196562df65a42c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classcv_1_1DenseOpticalFlow"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classcv_1_1DenseOpticalFlow')"><img alt="-" src="../../closed.png"/> Public Member Functions inherited from <a class="el" href="../../df/dde/classcv_1_1DenseOpticalFlow.html">cv::DenseOpticalFlow</a></td></tr>
<tr class="memitem:a20037021dec04e9006149204ad610d04 inherit pub_methods_classcv_1_1DenseOpticalFlow"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../df/dde/classcv_1_1DenseOpticalFlow.html#a20037021dec04e9006149204ad610d04">calc</a> (<a class="el" href="../../dc/d84/group__core__basic.html#ga353a9de602fe76c709e12074a6f362ba">InputArray</a> I0, <a class="el" href="../../dc/d84/group__core__basic.html#ga353a9de602fe76c709e12074a6f362ba">InputArray</a> I1, <a class="el" href="../../dc/d84/group__core__basic.html#gaf77c9a14ef956c50c1efd4547f444e63">InputOutputArray</a> flow)=0</td></tr>
<tr class="memdesc:a20037021dec04e9006149204ad610d04 inherit pub_methods_classcv_1_1DenseOpticalFlow"><td class="mdescLeft"> </td><td class="mdescRight">Calculates an optical flow.  <a href="../../df/dde/classcv_1_1DenseOpticalFlow.html#a20037021dec04e9006149204ad610d04">More...</a><br/></td></tr>
<tr class="separator:a20037021dec04e9006149204ad610d04 inherit pub_methods_classcv_1_1DenseOpticalFlow"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ada50da5295433ded930ddf32f681b80e inherit pub_methods_classcv_1_1DenseOpticalFlow"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../df/dde/classcv_1_1DenseOpticalFlow.html#ada50da5295433ded930ddf32f681b80e">collectGarbage</a> ()=0</td></tr>
<tr class="memdesc:ada50da5295433ded930ddf32f681b80e inherit pub_methods_classcv_1_1DenseOpticalFlow"><td class="mdescLeft"> </td><td class="mdescRight">Releases all inner buffers.  <a href="../../df/dde/classcv_1_1DenseOpticalFlow.html#ada50da5295433ded930ddf32f681b80e">More...</a><br/></td></tr>
<tr class="separator:ada50da5295433ded930ddf32f681b80e inherit pub_methods_classcv_1_1DenseOpticalFlow"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classcv_1_1Algorithm"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classcv_1_1Algorithm')"><img alt="-" src="../../closed.png"/> Public Member Functions inherited from <a class="el" href="../../d3/d46/classcv_1_1Algorithm.html">cv::Algorithm</a></td></tr>
<tr class="memitem:a827c8b2781ed17574805f373e6054ff1 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a827c8b2781ed17574805f373e6054ff1">Algorithm</a> ()</td></tr>
<tr class="separator:a827c8b2781ed17574805f373e6054ff1 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8ae826127fa0f1f8d10a24841bd376f8 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a8ae826127fa0f1f8d10a24841bd376f8">~Algorithm</a> ()</td></tr>
<tr class="separator:a8ae826127fa0f1f8d10a24841bd376f8 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aec9c965448e4dc851d7cacd3abd84cd1 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#aec9c965448e4dc851d7cacd3abd84cd1">clear</a> ()</td></tr>
<tr class="memdesc:aec9c965448e4dc851d7cacd3abd84cd1 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Clears the algorithm state.  <a href="../../d3/d46/classcv_1_1Algorithm.html#aec9c965448e4dc851d7cacd3abd84cd1">More...</a><br/></td></tr>
<tr class="separator:aec9c965448e4dc851d7cacd3abd84cd1 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab6a18f1825475643e94381697d413972 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#ab6a18f1825475643e94381697d413972">empty</a> () const</td></tr>
<tr class="memdesc:ab6a18f1825475643e94381697d413972 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the <a class="el" href="../../d3/d46/classcv_1_1Algorithm.html" title="This is a base class for all more or less complex algorithms in OpenCV. ">Algorithm</a> is empty (e.g. in the very beginning or after unsuccessful read.  <a href="../../d3/d46/classcv_1_1Algorithm.html#ab6a18f1825475643e94381697d413972">More...</a><br/></td></tr>
<tr class="separator:ab6a18f1825475643e94381697d413972 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a286fc82744ccab3d248aca44524266a9 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a286fc82744ccab3d248aca44524266a9">getDefaultName</a> () const</td></tr>
<tr class="separator:a286fc82744ccab3d248aca44524266a9 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aef2ad3f4145bd6e8c3664eb1c4b5e1e6 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#aef2ad3f4145bd6e8c3664eb1c4b5e1e6">read</a> (const <a class="el" href="../../de/dd9/classcv_1_1FileNode.html">FileNode</a> &amp;fn)</td></tr>
<tr class="memdesc:aef2ad3f4145bd6e8c3664eb1c4b5e1e6 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Reads algorithm parameters from a file storage.  <a href="../../d3/d46/classcv_1_1Algorithm.html#aef2ad3f4145bd6e8c3664eb1c4b5e1e6">More...</a><br/></td></tr>
<tr class="separator:aef2ad3f4145bd6e8c3664eb1c4b5e1e6 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0a880744bc4e3f45711444571df47d67 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a0a880744bc4e3f45711444571df47d67">save</a> (const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;filename) const</td></tr>
<tr class="separator:a0a880744bc4e3f45711444571df47d67 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1f8ad7b8add515077367fb9949a174d2 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a1f8ad7b8add515077367fb9949a174d2">write</a> (<a class="el" href="../../da/d56/classcv_1_1FileStorage.html">FileStorage</a> &amp;fs) const</td></tr>
<tr class="memdesc:a1f8ad7b8add515077367fb9949a174d2 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Stores algorithm parameters in a file storage.  <a href="../../d3/d46/classcv_1_1Algorithm.html#a1f8ad7b8add515077367fb9949a174d2">More...</a><br/></td></tr>
<tr class="separator:a1f8ad7b8add515077367fb9949a174d2 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a763a62d1b03042eef7d7fc3ac6c87c79 inherit pub_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a763a62d1b03042eef7d7fc3ac6c87c79">write</a> (const <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt; <a class="el" href="../../da/d56/classcv_1_1FileStorage.html">FileStorage</a> &gt; &amp;fs, const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;name=<a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a>()) const</td></tr>
<tr class="memdesc:a763a62d1b03042eef7d7fc3ac6c87c79 inherit pub_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">simplified API for language bindings This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.  <a href="../../d3/d46/classcv_1_1Algorithm.html#a763a62d1b03042eef7d7fc3ac6c87c79">More...</a><br/></td></tr>
<tr class="separator:a763a62d1b03042eef7d7fc3ac6c87c79 inherit pub_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a4ce7a192171d340ea19e1fd670b231e7"><td align="right" class="memItemLeft" valign="top">static <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt; <a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html">FarnebackOpticalFlow</a> &gt; </td><td class="memItemRight" valign="bottom"><a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html#a4ce7a192171d340ea19e1fd670b231e7">create</a> (int numLevels=5, double pyrScale=0.5, bool fastPyramids=false, int winSize=13, int numIters=10, int polyN=5, double polySigma=1.1, int flags=0)</td></tr>
<tr class="separator:a4ce7a192171d340ea19e1fd670b231e7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_static_methods_classcv_1_1Algorithm"><td colspan="2" onclick="javascript:toggleInherit('pub_static_methods_classcv_1_1Algorithm')"><img alt="-" src="../../closed.png"/> Static Public Member Functions inherited from <a class="el" href="../../d3/d46/classcv_1_1Algorithm.html">cv::Algorithm</a></td></tr>
<tr class="memitem:a623841c33b58ea9c4847da04607e067b inherit pub_static_methods_classcv_1_1Algorithm"><td class="memTemplParams" colspan="2">template&lt;typename _Tp &gt; </td></tr>
<tr class="memitem:a623841c33b58ea9c4847da04607e067b inherit pub_static_methods_classcv_1_1Algorithm"><td align="right" class="memTemplItemLeft" valign="top">static <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt; _Tp &gt; </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a623841c33b58ea9c4847da04607e067b">load</a> (const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;filename, const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;objname=<a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a>())</td></tr>
<tr class="memdesc:a623841c33b58ea9c4847da04607e067b inherit pub_static_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Loads algorithm from the file.  <a href="../../d3/d46/classcv_1_1Algorithm.html#a623841c33b58ea9c4847da04607e067b">More...</a><br/></td></tr>
<tr class="separator:a623841c33b58ea9c4847da04607e067b inherit pub_static_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3ba305a10d02479c13cf7d169c321547 inherit pub_static_methods_classcv_1_1Algorithm"><td class="memTemplParams" colspan="2">template&lt;typename _Tp &gt; </td></tr>
<tr class="memitem:a3ba305a10d02479c13cf7d169c321547 inherit pub_static_methods_classcv_1_1Algorithm"><td align="right" class="memTemplItemLeft" valign="top">static <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt; _Tp &gt; </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a3ba305a10d02479c13cf7d169c321547">loadFromString</a> (const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;strModel, const <a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a> &amp;objname=<a class="el" href="../../dc/d84/group__core__basic.html#ga1f6634802eeadfd7245bc75cf3e216c2">String</a>())</td></tr>
<tr class="memdesc:a3ba305a10d02479c13cf7d169c321547 inherit pub_static_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Loads algorithm from a String.  <a href="../../d3/d46/classcv_1_1Algorithm.html#a3ba305a10d02479c13cf7d169c321547">More...</a><br/></td></tr>
<tr class="separator:a3ba305a10d02479c13cf7d169c321547 inherit pub_static_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad8c591bacb34c485f5b7a250c314fc53 inherit pub_static_methods_classcv_1_1Algorithm"><td class="memTemplParams" colspan="2">template&lt;typename _Tp &gt; </td></tr>
<tr class="memitem:ad8c591bacb34c485f5b7a250c314fc53 inherit pub_static_methods_classcv_1_1Algorithm"><td align="right" class="memTemplItemLeft" valign="top">static <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt; _Tp &gt; </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#ad8c591bacb34c485f5b7a250c314fc53">read</a> (const <a class="el" href="../../de/dd9/classcv_1_1FileNode.html">FileNode</a> &amp;fn)</td></tr>
<tr class="memdesc:ad8c591bacb34c485f5b7a250c314fc53 inherit pub_static_methods_classcv_1_1Algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Reads algorithm from the file node.  <a href="../../d3/d46/classcv_1_1Algorithm.html#ad8c591bacb34c485f5b7a250c314fc53">More...</a><br/></td></tr>
<tr class="separator:ad8c591bacb34c485f5b7a250c314fc53 inherit pub_static_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pro_methods_classcv_1_1Algorithm"><td colspan="2" onclick="javascript:toggleInherit('pro_methods_classcv_1_1Algorithm')"><img alt="-" src="../../closed.png"/> Protected Member Functions inherited from <a class="el" href="../../d3/d46/classcv_1_1Algorithm.html">cv::Algorithm</a></td></tr>
<tr class="memitem:a68eeca71617474ad3d4561786f0289d2 inherit pro_methods_classcv_1_1Algorithm"><td align="right" class="memItemLeft" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/d46/classcv_1_1Algorithm.html#a68eeca71617474ad3d4561786f0289d2">writeFormat</a> (<a class="el" href="../../da/d56/classcv_1_1FileStorage.html">FileStorage</a> &amp;fs) const</td></tr>
<tr class="separator:a68eeca71617474ad3d4561786f0289d2 inherit pro_methods_classcv_1_1Algorithm"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a id="details" name="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Class computing a dense optical flow using the Gunnar Farneback's algorithm. </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a id="a4ce7a192171d340ea19e1fd670b231e7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4ce7a192171d340ea19e1fd670b231e7">◆ </a></span>create()</h2>
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          <td class="memname">static <a class="el" href="../../dc/d84/group__core__basic.html#ga6395ca871a678020c4a31fadf7e8cc63">Ptr</a>&lt;<a class="el" href="../../de/d9e/classcv_1_1FarnebackOpticalFlow.html">FarnebackOpticalFlow</a>&gt; cv::FarnebackOpticalFlow::create </td>
          <td>(</td>
          <td class="paramtype">int </td>
          <td class="paramname"><em>numLevels</em> = <code>5</code>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double </td>
          <td class="paramname"><em>pyrScale</em> = <code>0.5</code>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">bool </td>
          <td class="paramname"><em>fastPyramids</em> = <code>false</code>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int </td>
          <td class="paramname"><em>winSize</em> = <code>13</code>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int </td>
          <td class="paramname"><em>numIters</em> = <code>10</code>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int </td>
          <td class="paramname"><em>polyN</em> = <code>5</code>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double </td>
          <td class="paramname"><em>polySigma</em> = <code>1.1</code>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int </td>
          <td class="paramname"><em>flags</em> = <code>0</code> </td>
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        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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  </td>
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<span class="mlabels"><span class="mlabel">static</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.FarnebackOpticalFlow_create(</td><td class="paramname">[, numLevels[, pyrScale[, fastPyramids[, winSize[, numIters[, polyN[, polySigma[, flags]]]]]]]]</td><td>)</td></tr></table>
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</div>
<a id="ab9dbbcf7b690417657cc4bbccbaa931b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab9dbbcf7b690417657cc4bbccbaa931b">◆ </a></span>getFastPyramids()</h2>
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          <td class="memname">virtual bool cv::FarnebackOpticalFlow::getFastPyramids </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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      </table>
  </td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.FarnebackOpticalFlow.getFastPyramids(</td><td class="paramname"></td><td>)</td></tr></table>
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</div>
</div>
<a id="a3f1a6af08b0322eb9af98c5d0b18f2ba"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3f1a6af08b0322eb9af98c5d0b18f2ba">◆ </a></span>getFlags()</h2>
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          <td class="memname">virtual int cv::FarnebackOpticalFlow::getFlags </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.FarnebackOpticalFlow.getFlags(</td><td class="paramname"></td><td>)</td></tr></table>
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</div>
<a id="a810c5a1cc6564e14f6e4a6183cdf58c5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a810c5a1cc6564e14f6e4a6183cdf58c5">◆ </a></span>getNumIters()</h2>
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          <td class="memname">virtual int cv::FarnebackOpticalFlow::getNumIters </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.FarnebackOpticalFlow.getNumIters(</td><td class="paramname"></td><td>)</td></tr></table>
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</div>
</div>
<a id="a23aae74291ed9e896aa90499e2bb9eeb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a23aae74291ed9e896aa90499e2bb9eeb">◆ </a></span>getNumLevels()</h2>
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          <td class="memname">virtual int cv::FarnebackOpticalFlow::getNumLevels </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.FarnebackOpticalFlow.getNumLevels(</td><td class="paramname"></td><td>)</td></tr></table>
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</div>
<a id="a5554c4f40b80277feb8826a3eb484f0b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5554c4f40b80277feb8826a3eb484f0b">◆ </a></span>getPolyN()</h2>
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          <td class="memname">virtual int cv::FarnebackOpticalFlow::getPolyN </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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      </table>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.FarnebackOpticalFlow.getPolyN(</td><td class="paramname"></td><td>)</td></tr></table>
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</div>
</div>
<a id="a32500dc4fea948268e5937a2da915d48"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a32500dc4fea948268e5937a2da915d48">◆ </a></span>getPolySigma()</h2>
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          <td class="memname">virtual double cv::FarnebackOpticalFlow::getPolySigma </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.FarnebackOpticalFlow.getPolySigma(</td><td class="paramname"></td><td>)</td></tr></table>
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</div>
</div>
<a id="a7c9a20fa22122040ea97e757bf2704bf"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7c9a20fa22122040ea97e757bf2704bf">◆ </a></span>getPyrScale()</h2>
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      <table class="memname">
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          <td class="memname">virtual double cv::FarnebackOpticalFlow::getPyrScale </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.FarnebackOpticalFlow.getPyrScale(</td><td class="paramname"></td><td>)</td></tr></table>
</div><div class="memdoc">
</div>
</div>
<a id="ad35109ce6da384ff7e2568a3bcaa7331"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad35109ce6da384ff7e2568a3bcaa7331">◆ </a></span>getWinSize()</h2>
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          <td class="memname">virtual int cv::FarnebackOpticalFlow::getWinSize </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>retval</td><td>=</td><td>cv.FarnebackOpticalFlow.getWinSize(</td><td class="paramname"></td><td>)</td></tr></table>
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<a id="ad1e4f8b3a53098f5994a2048bd84ef92"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad1e4f8b3a53098f5994a2048bd84ef92">◆ </a></span>setFastPyramids()</h2>
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          <td class="memname">virtual void cv::FarnebackOpticalFlow::setFastPyramids </td>
          <td>(</td>
          <td class="paramtype">bool </td>
          <td class="paramname"><em>fastPyramids</em></td><td>)</td>
          <td></td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
  </tr>
</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.FarnebackOpticalFlow.setFastPyramids(</td><td class="paramname">fastPyramids</td><td>)</td></tr></table>
</div><div class="memdoc">
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<h2 class="memtitle"><span class="permalink"><a href="#a1297d4b32eeae6c61f90ca1ab47b66ea">◆ </a></span>setFlags()</h2>
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          <td class="memname">virtual void cv::FarnebackOpticalFlow::setFlags </td>
          <td>(</td>
          <td class="paramtype">int </td>
          <td class="paramname"><em>flags</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.FarnebackOpticalFlow.setFlags(</td><td class="paramname">flags</td><td>)</td></tr></table>
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<h2 class="memtitle"><span class="permalink"><a href="#aa3a3accde9da8c1d2ee7f3dc2697c059">◆ </a></span>setNumIters()</h2>
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          <td class="memname">virtual void cv::FarnebackOpticalFlow::setNumIters </td>
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          <td class="paramtype">int </td>
          <td class="paramname"><em>numIters</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.FarnebackOpticalFlow.setNumIters(</td><td class="paramname">numIters</td><td>)</td></tr></table>
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<h2 class="memtitle"><span class="permalink"><a href="#a19152daa38e2f224da52ad15362360fa">◆ </a></span>setNumLevels()</h2>
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          <td class="memname">virtual void cv::FarnebackOpticalFlow::setNumLevels </td>
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          <td class="paramtype">int </td>
          <td class="paramname"><em>numLevels</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.FarnebackOpticalFlow.setNumLevels(</td><td class="paramname">numLevels</td><td>)</td></tr></table>
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<h2 class="memtitle"><span class="permalink"><a href="#a408c4f0d5b694dc815282b651a69d400">◆ </a></span>setPolyN()</h2>
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          <td class="memname">virtual void cv::FarnebackOpticalFlow::setPolyN </td>
          <td>(</td>
          <td class="paramtype">int </td>
          <td class="paramname"><em>polyN</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.FarnebackOpticalFlow.setPolyN(</td><td class="paramname">polyN</td><td>)</td></tr></table>
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<h2 class="memtitle"><span class="permalink"><a href="#a6aa97f512e1d8712480af3e8d89004a3">◆ </a></span>setPolySigma()</h2>
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          <td class="memname">virtual void cv::FarnebackOpticalFlow::setPolySigma </td>
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          <td class="paramtype">double </td>
          <td class="paramname"><em>polySigma</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.FarnebackOpticalFlow.setPolySigma(</td><td class="paramname">polySigma</td><td>)</td></tr></table>
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<h2 class="memtitle"><span class="permalink"><a href="#a3e9149ec5a74942b81959c198a13f1b3">◆ </a></span>setPyrScale()</h2>
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          <td class="memname">virtual void cv::FarnebackOpticalFlow::setPyrScale </td>
          <td>(</td>
          <td class="paramtype">double </td>
          <td class="paramname"><em>pyrScale</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.FarnebackOpticalFlow.setPyrScale(</td><td class="paramname">pyrScale</td><td>)</td></tr></table>
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<a id="aac38b4be9d384303cd196562df65a42c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aac38b4be9d384303cd196562df65a42c">◆ </a></span>setWinSize()</h2>
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          <td class="memname">virtual void cv::FarnebackOpticalFlow::setWinSize </td>
          <td>(</td>
          <td class="paramtype">int </td>
          <td class="paramname"><em>winSize</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span>  </td>
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</table><table class="python_language"><tr><th colspan="999" style="text-align:left">Python:</th></tr><tr><td style="width: 20px;"></td><td>None</td><td>=</td><td>cv.FarnebackOpticalFlow.setWinSize(</td><td class="paramname">winSize</td><td>)</td></tr></table>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>opencv2/video/<a class="el" href="../../d4/dc2/modules_2video_2include_2opencv2_2video_2tracking_8hpp.html">tracking.hpp</a></li>
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